JPS54158400A - Production of a-type zeolite - Google Patents
Production of a-type zeoliteInfo
- Publication number
- JPS54158400A JPS54158400A JP6723678A JP6723678A JPS54158400A JP S54158400 A JPS54158400 A JP S54158400A JP 6723678 A JP6723678 A JP 6723678A JP 6723678 A JP6723678 A JP 6723678A JP S54158400 A JPS54158400 A JP S54158400A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- mother liquor
- dissolved
- type zeolite
- sodium silicate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
Abstract
PURPOSE: To produce A-type zeolite in an industrially advantageous manner while considering the water balance of the total process by recirculating mother liquor from reaction of anhydrous sodium silicate dissolved in a caustic soda soln. and sodium aluminate dissolved in a caustic soda soln., to prevent environmental pollution due to discharge of mother liquor,
CONSTITUTION: Sodium silicate glass with a molar ratio of SiO2/Na2O=2.1W3.6 is coarsely crushed or pulverized. The resulting anhydrous sodium silicate glass is heat-dissolved in an aq. soln. of NaOH, and the residue is removed by filtration. On the other hand, sodium aluminate is heat-dissolved in an aq. soln. of NaOH, and the residue is removed by filtration. Both of the solns. are then heat-reacted with stirring so that a product A-type zeolite has a molar ratio of SiO2/Al2O3=1.85± 0.5. The NaOH concn. of the reaction mother liquor is regulated to above 5, esp. 8W20 wt%. A-type zeolite deposited from the mother liquor is separation-recovered, and mother liquor free from alumina and silica is divided into two parts and recycled to the sodium silicate soln. and sodium aluminate soln. preparing processes.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6723678A JPS54158400A (en) | 1978-06-06 | 1978-06-06 | Production of a-type zeolite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6723678A JPS54158400A (en) | 1978-06-06 | 1978-06-06 | Production of a-type zeolite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54158400A true JPS54158400A (en) | 1979-12-14 |
| JPS5715048B2 JPS5715048B2 (en) | 1982-03-27 |
Family
ID=13339070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6723678A Granted JPS54158400A (en) | 1978-06-06 | 1978-06-06 | Production of a-type zeolite |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54158400A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074311C (en) * | 1998-03-30 | 2001-11-07 | 中国石油化工总公司 | Preparation of molecular sieve |
| JP2012041251A (en) * | 2010-08-23 | 2012-03-01 | Nippon Kensetsu Gijutsu Kk | Method for producing zeolite |
-
1978
- 1978-06-06 JP JP6723678A patent/JPS54158400A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074311C (en) * | 1998-03-30 | 2001-11-07 | 中国石油化工总公司 | Preparation of molecular sieve |
| JP2012041251A (en) * | 2010-08-23 | 2012-03-01 | Nippon Kensetsu Gijutsu Kk | Method for producing zeolite |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5715048B2 (en) | 1982-03-27 |
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